Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Joan De Vera"'
Autor:
John D. Greenough, Sandra L. Kamo, Donald W. Davis, Kyle Larson, Zhen Zhang, Daniel Layton-Matthews, Joan De Vera, Bridget A. Bergquist
Publikováno v:
Communications Earth & Environment, Vol 2, Iss 1, Pp 1-9 (2021)
Oceanic mantle-derived zircon grains recovered from pyroxenite xenoliths in Hawaii have 14-million-year-old rims, Cretaceous cores and Proterozoic lutetium-hafnium model-ages, according to mass spectrometry and electron microprobe analyses.
Externí odkaz:
https://doaj.org/article/f69c9aa623f4466b9d4209532e32b8ee
Autor:
William M. Landing, Priyanka Chandan, Geoff W. Stupple, Alexandra Steffen, Bridget A. Bergquist, Joan De Vera
Publikováno v:
ACS Earth and Space Chemistry. 5:2686-2699
Autor:
Kyle P. Larson, Zhen Zhang, Daniel Layton-Matthews, Joan De Vera, Donald W. Davis, Bridget A. Bergquist, Sandra L. Kamo, John D. Greenough
Publikováno v:
Communications Earth & Environment, Vol 2, Iss 1, Pp 1-9 (2021)
Our understanding of mantle evolution suffers from a lack of age data for when the mantle geochemical variants (mantle components) developed. Traditionally, the components are ascribed to subduction of ocean floor over Earth history, but their isotop
Autor:
Joan De Vera, Weibin Chen, Elizabeth Phillips, Tetyana Gilevska, Scott A. Morgan, Scott Norcross, Kathryn West, E. Erin Mack, Barbara Sherwood Lollar
Publikováno v:
Journal of Contaminant Hydrology. 250:104051
Compound-specific isotope analysis (CSIA) has become a valuable tool in understanding the fate of organic contaminants at field sites. However, its application to chlorinated benzenes (CBs), a group of toxic and persistent groundwater contaminants, h
Autor:
Joan De Vera, Priyanka Chandan, Paulina Pinedo-Gonzalez, Jay T. Cullen, Bridget A. Bergquist, Seth G. John, Manuel Colombo, Kristin J. Orians, Sarah L. Jackson
Publikováno v:
Proc Natl Acad Sci U S A
Anthropogenic Pb is widespread in the environment including remote places. However, its presence in Canadian Arctic seawater is thought to be negligible based on low dissolved Pb (dPb) concentrations and proxy data. Here, we measured dPb isotopes in
Publikováno v:
Chemical Geology. 525:479-491
Trace metals are essential micronutrients for phytoplankton, as well as useful tracers of biogeochemical processes in aquatic systems. The largest Arctic rivers are known to play an important role in the cycling of trace metals in the Arctic Ocean; h
Autor:
Bridget Bergquist, Joan De Vera, Priyanka Chandan, Paulina Pinedo-Gonzalez, Seth John, Sarah Jackson, Jay T. Cullen, Landing William, Alexandra Steffen
Publikováno v:
Goldschmidt Abstracts.
Autor:
Carl P. J. Mitchell, Wang Zheng, Frank Wania, Bridget A. Bergquist, Geoff W. Stupple, Alexandra Steffen, Joan De Vera, Priyanka Chandan
Publikováno v:
Applied Geochemistry. 131:105002
The Arctic plays a critical role in the global Hg cycle as both a sink of Hg and, in response to rapid global warming, an emerging source of Hg due to release from permafrost and glaciers. Human activities have led to significant mercury (Hg) contami
Autor:
Chung-Wai Chow, Brian P. Jackson, Colin A. Cooke, Meng Meng, Sarah Hustins, Joan De Vera, Lukas Kohl, Bridget A. Bergquist, Arthur W. H. Chan
Wildfires are increasing in prevalence and intensity and emit large quantities of persistent organic and inorganic pollutants. Recent fires have caused elevated concerns that residual pollutants in indoor environments pose a long‐term health hazard
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c09f0f3cb408e1126a5edcb0cf109385
http://hdl.handle.net/10138/299351
http://hdl.handle.net/10138/299351
Persistence of Wildfire-Derived Pollutants in Indoor Environments after 2016 Fort Mcmurray Wildfires
Autor:
Lukas Kohl, Sarah Hustins, Meng Meng, Chung-Wai Chow, Bridget A. Bergquist, Joan De Vera, Greg Wentworth, Brian P. Jackson, Arthur W. H. Chan, Colin A. Cooke
Publikováno v:
ISEE Conference Abstracts. 2018